diff --git a/db/migrate/20150408204739_remove_not_null_constraint_on_conference_title.rb b/db/migrate/20150408204739_remove_not_null_constraint_on_conference_title.rb
new file mode 100644
index 0000000..4eb6142
--- /dev/null
+++ b/db/migrate/20150408204739_remove_not_null_constraint_on_conference_title.rb
@@ -0,0 +1,5 @@
+class RemoveNotNullConstraintOnConferenceTitle < ActiveRecord::Migration
+  def change
+    change_column :conferences, :title, :string, null: true
+  end
+end
diff --git a/db/migrate/20150408204855_remove_not_null_constraint_on_conference_description.rb b/db/migrate/20150408204855_remove_not_null_constraint_on_conference_description.rb
new file mode 100644
index 0000000..ff14c77
--- /dev/null
+++ b/db/migrate/20150408204855_remove_not_null_constraint_on_conference_description.rb
@@ -0,0 +1,5 @@
+class RemoveNotNullConstraintOnConferenceDescription < ActiveRecord::Migration
+  def change
+    change_column :conferences, :description, :text, null: true
+  end
+end
diff --git a/db/migrate/20150408205015_remove_not_null_constraint_on_track_name.rb b/db/migrate/20150408205015_remove_not_null_constraint_on_track_name.rb
new file mode 100644
index 0000000..e47d63f
--- /dev/null
+++ b/db/migrate/20150408205015_remove_not_null_constraint_on_track_name.rb
@@ -0,0 +1,5 @@
+class RemoveNotNullConstraintOnTrackName < ActiveRecord::Migration
+  def change
+    change_column :tracks, :name, :text, null: true
+  end
+end